Before and After Special Effects from Various Notable Scenes

Special effects are crazy and if they're overused, can be off-putting (I'm looking at your Star Wars Episodes 1-3). But used right, and special effects can make a scene and drastically reduce set budgets. Check out these before and after shots of rather notable sets that we stumbled upon, including a pair from everyone's favorite zombie show, The Walking Dead.

Jaron Schneider is an Fstoppers Contributor and an internationally published writer and cinematographer from San Francisco, California. His clients include Maurice Lacroix, HD Supply, SmugMug, the USAF Thunderbirds and a host of industry professionals.

Not about that either, chroma subsampling removes too much information in the blue and red, because our eyes are more sensetive to green, and since green is the color with the most colorinformation in it after subsampling, it's perfect for keying.

Green is just used for Chrome Keying because it is the least common color to wear. Many Chroma key backdrop canvases are green on one side and blue on the other so you can flip them around for scenes that need green.

actually its because there is very little green in skin, so when you pull a green key there is less chance of the key getting confused and removing part of someones face. it also just happens to be an uncommon clothing color.

Yes, from what I've heard, it's because green and blue are as far away you can go from skin tones. They didn't say "Hmm, what color is the ugliest? People will not want to wear that, so let's use it as key".

In addition to being 180 degrees out of phase with red There are actually more important reasons. Most of the luminance information is in the green channel. Since it hold most of the luminace in a video signal it is sampled at twice the rate of the Blue and Red in most professional formats. Green is uaually used in digital. In film most of the Keys ar pulled from a blue back ground since the blue layer of the emulsion holds most of the detail / resolution information

Special effects are effects that are created and actually filmed, like pyrotechnics, zombie makeup, squibs, etc. Visual effects are manipulations created in post production, like matte paintings, green screen work, etc. All of the examples shown here are visual effects, not special effects :)